CN210648034U

CN210648034U - Punch for noise-reducing and pressure-reducing die

Info

Publication number: CN210648034U
Application number: CN201921721716.5U
Authority: CN
Inventors: 秦伟; 雷正甫
Original assignee: Changzhou Luohe Precision Machinery Co Ltd
Current assignee: Changzhou Luohe Precision Machinery Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-02
Anticipated expiration: 2029-10-15

Abstract

The utility model belongs to the technical field of the stamping process, concretely relates to drift for mould of making an uproar decompression falls. This drift includes: the punching head comprises a punching head body, wherein the lower end of the punching head body forms a punching surface, and the punching surface comprises a pair of pre-pressing surfaces which are suitable for punching and cutting a material to be punched and are pre-fixed and an arc-shaped buffer surface which is suitable for increasing the contact area of the punching surface and the material to be punched; the two pre-pressing surfaces are respectively positioned at the left side and the right side of the stamping surface, and the arc-shaped buffering surface is positioned between the two pre-pressing surfaces. According to the noise-reducing and pressure-reducing punch for the die, the edge of the punch body forms an arc punching surface. During stamping, the pre-pressing surface cuts and pre-fixes the material to be stamped, so that the instantaneous contact area of the stamping surface and the material to be stamped is reduced, and the noise is reduced. The arc buffering face increases the area of contact of punching press face with treating punching press material, pushes down for the drift body and provides the buffering, alleviates the recoil force that the punching press process drift body bore, provides the extension time for the waste material, avoids the drift body to damage, protects the drift body edge of a knife, increases drift body life.

Description

Punch for noise-reducing and pressure-reducing die

Technical Field

The utility model belongs to the technical field of the stamping process, concretely relates to drift for mould of making an uproar decompression falls.

Background

In the prior art, as shown in fig. 1, a material 2 to be punched is processed by a common punching die, and punching of the material 2 to be punched is performed by using a punch body 1 of the die, so that the punching is rapid and regular. However, the punching face 3 of the conventional punch body 1 is a flat face. In the process of punching the material to be punched 2 by the punch body 1, the punch body 1 is in a state of strong force and instantaneous downward punching, and the whole punching surface 3 is instantaneously contacted with the material to be punched 2 to generate larger noise. Moreover, since the punch body 1 needs a great force to punch the material to be punched 2, the punch body 1 is subjected to a large recoil force of the material to be punched 2, and the punch body 1 is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drift for mould of making an uproar decompression falls to solve the drift in the past in the great technical problem of punching press in noise and recoil force.

In order to solve the technical problem, the utility model provides a noise-reducing and pressure-reducing punch for a die, which comprises a punch body, wherein the lower end of the punch body forms a punching surface, and the punching surface comprises a pair of pre-pressing surfaces which are suitable for punching and cutting a material to be punched and are pre-fixed and an arc-shaped buffer surface which is suitable for increasing the contact area between the punching surface and the material to be punched;

the two pre-pressing surfaces are respectively positioned at the left side and the right side of the stamping surface, and the arc-shaped buffer surface is positioned between the two pre-pressing surfaces.

Further, the length of the pre-pressing surface is 0.4-1 time of the thickness of the material to be punched.

Further, the vertical distance between the highest point of the arc-shaped buffering surface and the pre-pressing surface is 1-1.5 times of the thickness of the material to be punched.

The beneficial effects of the utility model are that, the utility model discloses a drift for mould of making an uproar decompression falls, the edge of a knife of drift body forms the punching press face that has the circular arc. When stamping is carried out, the pre-pressing surface cuts and pre-fixes the material to be stamped, so that the contact area between the stamping surface and the material to be stamped is reduced instantaneously, and the effect of reducing noise is achieved. The arc buffering face increases the area of contact of punching press face with treating the punching press material, provides the buffering for the pushing down of drift body, alleviates the recoil force that the drift body bore among the stamping process, provides the time of extension for the waste material, avoids the drift body to damage, protects the edge of a knife of drift body, increases the life of drift body.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a prior art punch;

fig. 2 is a schematic structural diagram of a preferred embodiment of the noise-reducing and pressure-reducing punch for a die according to the present invention;

fig. 3 is a schematic structural view of the punching surface of the noise-reducing and pressure-reducing die punch of the present invention.

In the figure:

1. a punch body; 2. a material to be stamped; 21. waste materials; 3. stamping a surface; 31. pre-compacting the surface; 32. an arc-shaped buffer surface.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 2 and 3, the noise-reducing and pressure-reducing punch for a die according to the present embodiment includes a punch body 1, a lower end of the punch body 1 forms a punching surface 3, and the punching surface 3 includes a pair of pre-pressing surfaces 31 and an arc-shaped cushion surface 32. The pre-pressing surface 31 is suitable for pre-fixing the material 2 to be punched in a stamping and cutting manner, and the arc-shaped buffer surface 32 is suitable for increasing the contact area between the stamping surface 3 and the material 2 to be punched. The two pre-pressing surfaces 31 are respectively positioned at the left side and the right side of the stamping surface 3, and the arc-shaped buffering surface 32 is positioned between the two pre-pressing surfaces 31. The pre-pressing surface 31 is a flat surface which is convenient for contacting the material 2 to be punched. The knife edge of the punch body 1 forms a punching surface 3 with an arc. When punching is carried out, the pre-pressing surface 31 cuts and pre-fixes the material 2 to be punched, so that the instantaneous contact area between the punching surface 3 and the material 2 to be punched is reduced, and the effect of reducing noise is achieved. The arc buffer surface 32 increases the contact area between the punching surface 3 and the material to be punched 2, provides buffer for the downward pressing of the punch body 1, reduces the recoil force borne by the punch body 1 in the punching process, provides the extending time for the waste 21, avoids the punch body 1 from being damaged, protects the knife edge of the punch body 1, and prolongs the service life of the punch body 1.

As shown in FIG. 3, the length of the pre-pressing surface 31 is 0.4 to 1 times the thickness of the material 2 to be punched. The contact area of the punching surface 3 for pressing and cutting the material 2 to be punched is ensured to be smaller, and the noise is reduced. Meanwhile, the damage of the knife edge of the punch body 1 caused by the reduction of the capability of the punching surface 3 for bearing the recoil force due to the over-small length of the pre-pressing surface 31 is avoided.

As shown in FIG. 3, the vertical distance between the highest point of the arc-shaped buffering surface 32 and the pre-pressing surface 31 is 1-1.5 times of the thickness of the material 2 to be punched. Guarantee that punching press face 3 can fully contact and treat punching press material 2, buffer the trend of pushing down of punching press face 3 as far as possible, slow down the recoil dynamics that punching press face 3 bore, reduce the noise that punching press face 3 and treat punching press material 2 striking production.

As shown in fig. 2 and 3, in the practical operation of the present invention:

the position of the material 2 to be punched, which needs to be punched, is moved to the position right below the punch body 1, and after the material 2 to be punched is fixed, the punch body 1 is pressed downwards to perform punching operation. The pre-pressing surface 31 first contacts the material 2 to be punched and performs cutting pre-fixing on the material 2 to be punched. With the continuous downward punching of punching press face 3, the area of contact of arc buffering face 32 and waiting to punch press material 2 constantly increases, carries out the punching press operation, until realizing punching press play waste material 21, obtains required punching press, accomplishes single punching press operation. The punch body 1 is lifted and reset to wait for the next punching operation. And repeating the previous steps until all the punching operations are completed.

To sum up, use this utility model's a drift for mould of making an uproar decompression falls, the edge of a knife of drift body forms the punching press face that has the circular arc. When stamping is carried out, the pre-pressing surface cuts and pre-fixes the material to be stamped, so that the contact area between the stamping surface and the material to be stamped is reduced instantaneously, and the effect of reducing noise is achieved. The arc buffering face increases the punching press face and treats punching press material area of contact, provides the buffering for the pushing down of drift body, alleviates the recoil force that the drift body received among the stamping process, provides the time of extension for the waste material, avoids the drift body to damage, protects the edge of a knife of drift body, increases the life of drift body.

The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or component to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a drift for mould that makes an uproar to fall decompression which characterized by: the punching head comprises a punching head body (1), wherein a punching surface (3) is formed at the lower end of the punching head body (1), and the punching surface (3) comprises a pair of pre-compaction surfaces (31) which are suitable for pre-fixing the material (2) to be punched in a punching and cutting way and an arc-shaped buffer surface (32) which is suitable for increasing the contact area between the punching surface (3) and the material (2) to be punched;

the two pre-pressing surfaces (31) are respectively positioned at the left side and the right side of the stamping surface (3), and the arc-shaped buffering surface (32) is positioned between the two pre-pressing surfaces (31).

2. A noise-reducing and pressure-reducing punch for a mold according to claim 1, wherein: the length of the pre-pressing surface (31) is 0.4-1 time of the thickness of the material (2) to be punched.

3. A noise-reducing and pressure-reducing punch for a die as set forth in claim 1 or 2, wherein: the vertical distance between the highest point of the arc-shaped buffering surface (32) and the pre-pressing surface (31) is 1-1.5 times of the thickness of the material (2) to be punched.